Metallic culvert.



W. P. DU CHEMIN.

METALLIC GULVBRT. APPLICATION FILBDMAY 23,1913.

, 3 242 V Patented De0.30,1913.

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Witnesses Inventor Attorney s. AT

WILLPI' IDU CHEMIN,: 0F MIDDLETOWN, OBIQALSSIGNOR TO THE AMERICAN ROLLING MILL @OMPANY} OFx NEWARK, NEW- JERSEY.

METALLIC CULVERT.

izceaaaa Specification 'of Letters Patent.

Patented nee. so; rare.

To aill-whom'z't may concern:

Be it-i known that I, 'WJILIAM P. DU CHEMIN, a citizen of the United'States,.residing in Middletown, Butlercounty; Ohio, have invented certainn'ew and'useful Improvelne'nts imMetallic Culverts, of which the following' isi a specification;

' 'Inverylate years metallic pipes made of iron'with corrugations extending circumferentially aroundthe pipe have provided of high eiliciency for culvert uses' Such culvertsare from eight inches toieighty-four inchesin diameter and in very many cases, as in railroad and highway work the ends of the culverts project endwise more or less beyond culverts often become deformed -andnnsightly.

My present invention relates to a system for reinforcing the exposed ends of such col verts, and the invention will be readily understood from the following description taken in connection With'theaccompanying drawing in which Figure l is an elevation'of a section of corrugated metallic culvert havingone of its ends provided'with a'system of reinforce inent embodying my invention: Fig. 2 a diametrical section of a portion of the same, upon an enlarged scale, in the'plane of line a of Figs. 1 and 3: Fig. 3 an end elevation of a portion of the culvert; and Fig. 4: a section similar ,to Fig. 2 in the plane of line b of Figs. 1 and 3, Fig. 4 illustrating the con strnction in a form somewhat modified as compared with the construction shown in theother figures.

In the drawing :-1, indicates the pipe, 2, the valleys of the corrugations, 3, one end of the pipe, the end being atthe crest of the hill of the final corrugation, 4, a band formed of sheet metal and encircling the end of the pipe which is to be, reinforced, this hand fitting the first slope and the valley of the first corrugation, the band being formed of sheet metal havinga joint in one portion of its circumference :5 5-, a roll, formed inwardly at the outer end of the band: 6, a

rod inclosed in the roll of the band: 7 a socket formed in roll 5 "at one side of the joint ofthe band; this socket being fornied by shortage in rod 6, that is to say, the end ofthe rod does not reach to the jointin the band: 8, a tenon entering socket 7 and formedby prolonging the end of the rod beyond the joint in the band: 9, earssecured to the :band: at each side of the joint in the band -10, a draw-bolt engaging the ears and serving to draw the band firmly to position *on the pipe ;:and l1, rivets unitingthe band Igotliiat portion: of thepipe overlain by the The reinforcement by the rod'ded' band strengthens the "end of the pipe in an obvious manner and the-"engagement of the band with the first slope of the firstcorrugation permits ofthe band being secured tot-he pi-pewith greatfir nness. The projecting of the rod at one side of the joint of the'band into the socketat the-other side of thejoint 1 gives extreme stifi'ness to the roll of the band.

lhe band,'illustrated'in Figs. 1, 3 and 4 may readily be applied to'a pipe before the pipe is located as a culvert, by merely openmg the band and applying-it to the end, of the pipe and then utilizing the draw-bolt, a band may thus be applied -to all culverts in exposed situations, it being, of course,'necessary, to first correct any serious deformities which would interfere with the proper fitting of the, band. In the fixing of these corrugatedculverts, it cannot always be known in advance just how long the cili verts will be, and the draw-bolt system of applying the band provides for the convenient attachment of the reinforcement even on new work being placed in position. in cases Where it is known in advance what the length of the culvert will be so as to know where the reinforcements are to come, then, instead of employing the draw-:bolt, the reinforcing band may be clamped in place onv the pipe by any convenient means and then riveted as indicated in Fig. 4, this band being more economical. than the other and the application of the band in this form being peculiarly applicable as ,a shop operation, that is to say, the application of the reinforcing band as a step in the manufacture of the pipe.

I claim 1. A metallic culvert comprising, a circumferentially corrugated pipe, a band secured to the end of the pipe and engaging the end corrugation thereof and projecting beyond the end of the pipe, and a roll formed by.

"band together to cause the band to forcefully clas the pipe, combined substantially asset fort '3. A metallic culvert comprising, a circumferentially corrugated pipe, a band secured to the end of the pipe and engaging the end 20 corrugation thereof and projecting beyond the end of the pipe, a roll formed by that portion of the band projectin beyond the pipe, ears projecting outwar ly from the ends of the band, and a draw-bolt passing through said ears and serving to draw the band into forceful en agement with the pipe, combined substantially as set forth.

4'. A metallic culvert comprising, a circumferentially corrugated pipe, a band s'ecured to the end of the pipe and engaging the end corrugation thereof and projecting beyond th'eend of the pipe,-and aninwardly projecting roll formed by that portion of the band projecting beyond the pipe, combined substantially as set forth.

5. A metallic culvert comprising, a eir cumferentially corrugated pipe, a band secured to the end of the pipe and engaging the end corrugation thereof and projecting beyond the end of the-pipe, a roll formed by that portionof the band projecting beyond the ipe, and a rod inclosed by said;

roll, combined substantiallyas set forth.

6. A- metallic culvert comprising, a circumferentially corrugated pipe, a band secured to the end of the pipe and engaging the end corrugation thereof and ro'ectin beyond the end of the pipe, a rol orm'e by that portion of the band projecting be yond the pipe, and a rodinclosed bysaid roll and having meet its ends set back to form within the roll a socket at one side of the joint in the band and having the other end projecting from the roll so as to engage said socket, combined substantially as set forth. t WILLIAM P. DU CHEMIN.

V Witnesses: i

E. H. WEYMAN, J. T. Sansone. 

